The deal: Smithsonian magazine hosts this event each year to encourage people to revisit their favorite museum or learn about a new one in their area. Here's how it works: Go to the Museum Day website and register to download a free ticket good for entrance to one museum on the list.

The ticket allows free admission for two people; additional family members or friends pay full admission. It doesn't include special exhibits, Imax screenings or parking.

When: The offer is good Saturday only.

Details: I recommend checking out the list of museums to plan what you want to see. On Saturday, the Autry (usually $10 per adult) will be celebrating the birthday of namesake cowboy Gene Autry with performers singing classic cowboy songs, screenings of his TV show and birthday cake. The Grammy Museum (usually $12.95 per adult) houses an ongoing exhibit about the life of Whitney Houston.